/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/GeodesicPath.h
Replace the specified two connected edge segments (FPathJoint) in the main path with a new sub-path that connects the same end points. This new path is formed by flipping the adjacent edges to the left (or right) of the joint vertex and may have one, two, or more segments
void DeformJoint ( [FPathJoint](API\Plugins\DynamicMesh\Operations\FDeformableEdgePath\FPathJoint) & PathJoint )